Placido Polanco, who hasn’t played since being hit in the helmet by a pitch Friday, has been placed on the seven-day concussion disabled list by the Marlins.

Polanco has spent all season as Miami’s primary third baseman despite hitting just .253 with one homer and a .600 OPS in 343 plate appearances. He’s scored just 28 runs, driven in just 21 runs, and among the 30 major leaguers to appear in at least 50 games at third base this season Polanco ranks second-to-last in OPS ahead of only Yuniesky Betancourt.

Ed Lucas had been eating into Polanco’s playing at third base recently and will be the everyday starter there for however long the brain injury sidelines the 37-year-old.

Sorry to hear Placido’s hurt. Whelp, there goes the Feesh’s experiment with ackcherley playing a third baseman at third base. As Craig pointed out, it hasn’t amounted to much – physicists might consider the effect of the current Feelies on this ex-Feelie as a form of spooky action at a distance. Perhaps Scrooge McLoria and his brainstem trust were right: what Earthly good could there be in playing a third baseman at third base anyway?